Honeywell Solution for Data Acquisition and Nadcap Reports for AMS2750E Applications

Honeywell’s Trendview family of paperless recorders provides the flexibility, security, accuracy and networking capabilities to meet your Nadcap recording needs. Trendview recorders support process monitoring and temperature uniformity surveys as detailed by the Aerospace Material Specification AMS2750E. The recorders can be set up to monitor and record thermocouple usages, due dates for the temperature uniformity survey, system accuracy test, instrument calibration dates and thermocouple usages to insure compliance to the specification.

Trendview Recorder AMS2750E Features • Temperature Uniformity Summary screen provides easy

monitoring of each set point of the survey

• Monitoring and recording of overshoot, min-max, temp difference and time duration for up to six survey set points

• Thermocouple usage monitoring

• Due date reporting for Temperature Uniformity Survey (TUS), System Accuracy Test (SAT) and instrument calibration dates are color coded for fast identification

• Automatic zoom function once temperature enters the uniformity range based on the defined furnace class

• Ability to enter correction factors for each T/C along with T/C calibration and traceability information

• Ability to set auto-detection or override the start of the soak period for each temperature survey set point

• Enter furnace and survey specific information to document the temperature uniformity survey results

• Ability to generate a secure report for documenting the TUS including furnace diagram, identification of equipment, identification of survey personnel and process data

• SAT template provided in report with ability to add furnace and user-specific data

Recorder Process Mode

Trendview process screen provides online monitoring in the process recorder to alert the user to potential AMS2750E noncompliance issues. It automatically monitors critical dates based on the defined furnace class. For the Multitrend recorder, up to 12 pens can be displayed for each process display. Other information included on the process monitoring screen includes:

• Days until next Temperature Uniformity Survey

• Days until next System Accuracy Test

• Days until next control T/C change out

• Days until the recorder requires calibration

• Overview of T/C usage tracking for all T/Cs

• Color coded for early warning (five-day expiration)

Multitrend Process Screen

Honeywell Solution for Data Acquisition and Nadcap Reports for AMS2750E Applications 2

Automated Process Thermocouple Tracking

An integral part of any Nadcap audit of thermal processes involves monitor and tracking the usage of process thermocouples. Trendview recorders provide a means to track and alert the user of the current status of each process T/C. The recorder uses the information entered for each thermocouple such as T/C type, whether it is expendable or non-expendable along with the process conditions the T/Cs have been exposed to in determining the number of uses and days left before the thermocouple needs to be renewed.

Temperature Uniformity Survey

The temperature uniformity survey is a key parameter used by Nadcap auditors to insure compliance to the AMS2750E specification. There are many parameters and process measurements needed to document the compliance of the thermal processing equipment to AMS2750E and to determine which furnace class the equipment is qualified to work in. The Multitrend recorder TUS option is set up to track a number of parameters during a TUS, including:

• The ramp time for the first ramp ( t1)

• The time between the first T/C entering dwell zone and the last T/C entering dwell zone for SP1 ( t2)

• The point where all T/Cs are stable and lie within the SP1 tolerance limits

• The dwell time ( t3) (minimum of 30 minutes)

• Maximum temperature value during the dwell period ( mxs1)

• Minimum temperature value during the dwell period ( mis1)

• Ramp time for the second ramp ( t4)

• The time between the first T/C entering dwell zone and the last T/C entering dwell zone for SP2 ( t5)

• The maximum temperature overshoot ( mxo2)

In addition to the process conditions, the information related to the equipment such as manufacturer’s name, furnace serial number, furnace class, instrument type, furnace shape and size, thermocouple certifications, offsets and type of T/C are entered in the recorder set up to aid in determining, in real time, the current status of the process survey. This allows the survey engineer to know exactly how well the survey is going and whether corrective action is required before going to the next step. This information is presented in a single TUS Summary Screen (shown below).

Temperature Uniformity Survey Summary Screen

The TUS Summary Screen provides real-time information and tracking of each step of the process.

Multitrend Temperature Uniformity Survey Screen

When doing an actual temperature uniformity survey using the Multitrend recorder, data is recorded at two-minute intervals and a standard TUS Summary Screen provides real-time information and tracking of each step of the process. Key features include:

• Provides status information for up to six set points

• Header information provides furnace details

• In the active running mode the screen provides minimum and maximum T/C readings, maximum differences, maximum overshoot, durations and furnace class detail

• The trend graph auto-sizes when the first process values reach the set point limits for the defined furnace class

• Trend graph switches to display maximum and minimum temperature readings for the furnace

• Each step is color coded for fast visual indication of progress of the survey

• Summary report can be e-mailed or exported

Honeywell Solution for Data Acquisition and Nadcap Reports for AMS2750E Applications 3

More Information For more information, visit www.honeywellprocess.com or contact your Honeywell account manager. Automation & Control Solutions Process Solutions Honeywell 512 Virginia Drive Fort Washington, PA 19034 Tel: +1 800 343 0228

The recorder creates a separate secure data file that is used by the PC Analysis and Report Tool for generating the survey report.

PC Analysis and Report Tool

The TUS data stored on the removable media of the recorder can be imported into the PC Analysis Tool to generate the survey report to document the furnace’s performance. The tool uses a report wizard to aid in entering the information not provided by the recorder. The Report Tool provides a complete report with survey details, furnace details, T/C identification, correction factors, a furnace diagram with T/C positioning and trend graphs of the recorded temperatures. Other documentation provided by the report includes max differences across survey T/Cs, differences between survey T/Cs and the control set point, maximum overshoot, ramp durations and T/C lag time. The tool also provides a SAT template.

SO-13-61-ENG September 2013 © 2013 Honeywell International Inc.